---
title: "CVE-2019-1129: Improper Link Resolution Before File Access | CubePath"
description: "An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation…"
language: en
source: https://cubepath.com/security/cve/CVE-2019-1129
---

# CVE-2019-1129: Improper Link Resolution Before File Access | CubePath

## Description

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1130.

Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-1129)

## Key data

### CVSS 3.1 High 7.8

Score published by CISA-ADP in the CVE record.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

| Metric                 | Value     | What it means                                                                             |
| ---------------------- | --------- | ----------------------------------------------------------------------------------------- |
| Attack vector          | Local     | The attacker needs local access to the system, or to trick a user into running something. |
| Attack complexity      | Low       | No special conditions are needed. The attack can be repeated at will.                     |
| Privileges required    | Low       | A basic user account is needed.                                                           |
| User interaction       | None      | No action from any user is needed.                                                        |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                         |
| Confidentiality impact | High      | Serious or total effect on the secrecy of data.                                           |
| Integrity impact       | High      | Serious or total effect on the trustworthiness of data.                                   |
| Availability impact    | High      | Serious or total effect on availability.                                                  |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.01782 (1.8% probability)

Percentile

78.5%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

Added to the catalog

Mar 15, 2022

Federal due date

Apr 5, 2022

Ransomware campaigns

Known use

### CISA assessment as of Feb 7, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-59](https://cwe.mitre.org/data/definitions/59.html) Improper Link Resolution Before File Access

## Affected products

Products listed in the CVE record, as the CNA published them.

- Microsoft Windows

  - affected: 10 Version 1703 for 32-bit Systems
  - affected: 10 Version 1703 for x64-based Systems
  - affected: 10 Version 1709 for 32-bit Systems
  - affected: 10 Version 1709 for x64-based Systems
  - affected: 10 Version 1803 for 32-bit Systems
  - affected: 10 Version 1803 for x64-based Systems
  - affected: 10 Version 1803 for ARM64-based Systems
  - affected: 10 Version 1809 for 32-bit Systems
  - affected: 10 Version 1809 for x64-based Systems
  - affected: 10 Version 1809 for ARM64-based Systems
  - affected: 10 Version 1709 for ARM64-based Systems
- Microsoft Windows Server

  - affected: version 1803 (Core Installation)
  - affected: 2019
  - affected: 2019 (Core installation)
- Microsoft Windows 10 Version 1903 for 32-bit Systems

  - affected: unspecified
- Microsoft Windows 10 Version 1903 for x64-based Systems

  - affected: unspecified
- Microsoft Windows 10 Version 1903 for ARM64-based Systems

  - affected: unspecified
- Microsoft Windows Server, version 1903 (Server Core installation)

  - affected: unspecified

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [portal.msrc.microsoft.com/en-US/security-guidance/advisory/…](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1129)

## Timeline

1. ID reserved Nov 26, 2018
2. Record published Jul 29, 2019
3. Added to CISA KEV Mar 15, 2022
4. Record last updated Oct 21, 2025

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:31 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)